We like to convert audio signals to a digital signal. First, as a digital signal, it can be moved around many times without degrading during transmission. Old vinyl records would eventually wear out and get scratched. Tapes would wear out and the signal would be degraded. Not so with an audio track that is digitized. The data string is easier to "protect" than the vulnerable records or tapes. It's not going to degrade or "wear out" from playing. Also, digital audio can be stored as a digital file in contemporary computer- or microprocessor-based storage systems. This kind of storage can suggest that it can be kept around indefinitely. Certainly since it's a digital data string, it can be stored a "long time" without fear of degradation of the media, like with records or tape. Another advantage of converting audio to a digital signal (and a biggie) is that as a digital signal, it can be processed to achieve almost limitless effects. The clever designs of digital signal processing software make these applications powerful manipulators of any audio that is pushed through them in the form of a data string. The end product is constrained by almost nothing but the creativity (and the skill at using the software) of the person sitting at the keyboard of the computer. Got links if you want them. They are to related articles posted by our friends at Wikipedia, where knowledge is free.
The analog source needs to be upscaled to dvi and the upscaled output fed to a switcher along with the digital source, you can then switch between the 2 sources with one digital output to the monitor.
The differences between analogue and digital is in the transmission of signals. Analogue technology will transmit a signal wave in its original format but in digital technology, the analogue wave is sampled and turned into numbers which are stored in digital devices.
Using analogue communication from a digital interface requires some kind of converter to convert your digital data into analogue before it can be sent. This data needs to be converted back into digital by the receiver. Hence a larger amount of work needs to be done. eg: the VGA cable used to connect a PC to a screen is a analogue cable. So all the video signals that are sent out by your PC are converted to analogue first. Hence there is a larger amount of work done. There is also a chance of data being lost during this conversion. If the source signal and the output signal are digital, then there is no conversion required and resulting work required is less. This also means that the receiver doesn't need to convert this data. Hence work done is less and data loss in conversion is also minimal. Although transmitting digital data over long distances also results in some amount of loss. eg: video signals transmitted through DVI or HDMI cables are purely digital. A PC or Blu-Ray player connected to a digital screen using any of the above interfaces doesn't need to convert the signal before sending it. Hence data loss is minimal and resulting picture is sharper and accurate.
To isolate a patient from getting connected to stray voltages. An isolation transformer is used and batteries power it to further isolate you from the real world. Also for sensitive measurements to eliminate some of the noise and current loops.
In the US the answer is probably not. Digital and analog TV broadcasts use the same frequencies and antennas. Digital TV is more fussy about signal quality than the older analog signals. So if you get marginal analog reception, figure on getting a new antenna for digital. The idea that there are special HDTV antennas is just marketing hype. Any antenna that gives you better digtial reception will also give you better digital reception.
DTV sometime needs a better antenna than the old analog TVs. A few stations did not switch to DTV and are still Analog like LPTV which is Low Power TV.
A Motorola digital cable box is used to changed an analog television to digital viewing. The cable box needs to be connected to a receiver such as a roof antenna and then to the television. The television then has to scan the box to locate signals that it can receive.
Disadvantage of Analog Communication: 1)Analog Communication systems are costlier than digital communication system. 2)Less Security in Analog Communication 3)More prone to noise interference. Advantage of Analog Communication: 1)Transmission bandwidth required is less. 2)No need of synchronization. Advantage of Digital Communication: 1)Digital Communication systems are simpler and cheaper. 2)Using data encryption only permitted user are allowed to detect the transmitted data. 3)Since in Digital Communication, channel coding is used, therefore a large amount of errors may be detected 4)Since transmitted signal is digital in nature,large amount of noise tolerance may be tolerated Disadvantage of Digital Communication: 1)More transmission bandwidth required. 2)Digital Communication needs synchronization in case of synchronous modulation.
Mainly to free up radio frequency spectrum. An analog picture uses 4.5 megahertz for the video and sound and a satellite transponder is typically 8 Mhz. wide. With the new digital system, it's possible to transmit up to eight separate TV channels in the same bandwidth on the transponder using a system called, `multiplexing`.
To get analog channels on an RCA Television a analog converter box needs to be purchased. Most local electronic retailers carry these devices.
There is no answer to this question, it needs to be reworded into a coherent form. Most mobile communications use F.M. (analog systems) or some form of digital transmission/reception.
Yes..but it needs to be converted to a format that the PSP can play (you need a computer and Video conversion software to do this)